Question 6.421

28. Disease Outbreak. A survey found that only 9% of Americans were “very confident” that the U.S. government is prepared to handle a major outbreak of an infectious disease.20 Suppose that we have a sample of 100 Americans. Approximate the following probabilities:

  1. Exactly 9 Americans are very confident.
  2. At least 9 Americans are very confident.
  3. More than 9 Americans are very confident.
  4. At most, 9 Americans are very confident.
  5. Fewer than 9 Americans are very confident.